Tricky DSL IP headache...any thoughts?

docthecat · 02-02-2010, 12:53 PM

I used to have verizon DSL...and I could easily change IP by logging into the default gateway and terminating/reconnecting the session.

My contract with verizon was up so I tried another dynamic DSL provider. Where I live all competing DSL providers need to lease through verizon...so my new provider (in theory) should be working with the same IP pool as when I dealt directly with verizon?

However I am unable to force an IP change by terminating and reconnecting the session with this new provider...although my IP did change overnight?

I have a DLINK 2320b modem...and thoughts on how this modem or my cpu could be configured differently to allow me the freedom to swap IP's on demand again?

Its a PPPOE connection - running windows XP

Thanks

wimiadmin · 02-02-2010, 01:35 PM

The way it probably works is that Verizon has given the new DSL company a block of IPs and the new company is responsible for assigning those IPs to their users. The new company probably has lease times built in where Verizon may not have.

Even though Verizon might 'own' the IPs you're getting assigned, the new company controls how they're controlled.

With that said, you may not be able to change any configuration on any of your devices to get a new IP like you've done in the past going directly to Verizon.

docthecat · 02-02-2010, 07:27 PM

The more I think about it this makes sense...when I was dealing directly with Verizon I was terminating (their) session...now I am really just terminating the session of a middleman (my DSL provider) - and their session with Verizon (the important one) is remaining intact...if I am looking at this correctly?

wimiadmin · 02-02-2010, 07:36 PM

That's exactly right. You're only terminating the connection between you and the middleman.

0siris · 02-04-2010, 04:14 PM

I disagree with Wimiadmin, but only a little bit. Most likely, Verizon gave your current ISP some set of IP addresses to use. The ISP, however, can pretty much assign them as it sees fit. Every time you connect to that ISP, their DHCP services assigns you a lease.

Except for not having an explicit fee of its own, that "lease" is exactly what it sounds like. The IP address is leased to you for some amount of time. It could be minutes, it could be seconds, it could be days or even weeks. It's up to the ISP. As long as the ISP doesn't run out of addresses, then that lease has to run its course before you might get issued a new one.

So my point is that Verizon is no longer relevant to your network connection. The IP Address may have been issued via Verizon, but it (for all practical purposes) now belongs to the ISP, and the ISP controls when it gets issued/used. Not Verizon.

02-02-2010, 12:53 PM	#1
docthecat Member Join Date: Feb 2010 Posts: 2	Tricky DSL IP headache...any thoughts? I used to have verizon DSL...and I could easily change IP by logging into the default gateway and terminating/reconnecting the session. My contract with verizon was up so I tried another dynamic DSL provider. Where I live all competing DSL providers need to lease through verizon...so my new provider (in theory) should be working with the same IP pool as when I dealt directly with verizon? However I am unable to force an IP change by terminating and reconnecting the session with this new provider...although my IP did change overnight? I have a DLINK 2320b modem...and thoughts on how this modem or my cpu could be configured differently to allow me the freedom to swap IP's on demand again? Its a PPPOE connection - running windows XP Thanks

02-02-2010, 01:35 PM	#2
wimiadmin Administrator Join Date: May 2008 Location: Pigeon Forge, TN Posts: 858	The way it probably works is that Verizon has given the new DSL company a block of IPs and the new company is responsible for assigning those IPs to their users. The new company probably has lease times built in where Verizon may not have. Even though Verizon might 'own' the IPs you're getting assigned, the new company controls how they're controlled. With that said, you may not be able to change any configuration on any of your devices to get a new IP like you've done in the past going directly to Verizon. __________________ Brian Please Search Before Posting

02-02-2010, 07:27 PM	#3
docthecat Member Join Date: Feb 2010 Posts: 2	Thanks for the info The more I think about it this makes sense...when I was dealing directly with Verizon I was terminating (their) session...now I am really just terminating the session of a middleman (my DSL provider) - and their session with Verizon (the important one) is remaining intact...if I am looking at this correctly?

02-02-2010, 07:36 PM	#4
wimiadmin Administrator Join Date: May 2008 Location: Pigeon Forge, TN Posts: 858	That's exactly right. You're only terminating the connection between you and the middleman. __________________ Brian Please Search Before Posting

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02-04-2010, 04:14 PM	#5
0siris Super Moderator Join Date: Nov 2009 Location: IL, USA Posts: 156	I disagree with Wimiadmin, but only a little bit. Most likely, Verizon gave your current ISP some set of IP addresses to use. The ISP, however, can pretty much assign them as it sees fit. Every time you connect to that ISP, their DHCP services assigns you a lease. Except for not having an explicit fee of its own, that "lease" is exactly what it sounds like. The IP address is leased to you for some amount of time. It could be minutes, it could be seconds, it could be days or even weeks. It's up to the ISP. As long as the ISP doesn't run out of addresses, then that lease has to run its course before you might get issued a new one. So my point is that Verizon is no longer relevant to your network connection. The IP Address may have been issued via Verizon, but it (for all practical purposes) now belongs to the ISP, and the ISP controls when it gets issued/used. Not Verizon.